uk abwr generic design ?· uk abwr generic design assessment quantification of discharges and...

Download UK ABWR Generic Design ?· UK ABWR Generic Design Assessment Quantification of Discharges and Limits…

Post on 09-Sep-2018

213 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • Form10/00

    Hitachi-GE Nuclear Energy, Ltd.

    UK ABWR

    UK ABWR Generic Design Assessment

    Quantification of Discharges and Limits

    Document ID

    :

    GA91-9901-0025-00001 Document Number : HE-GD-0004 Revision Number : G

  • NOT PROTECTIVELY MARKED Form01/03

    Page i/i

    GA91-9901-0025-00001 Rev.G

    NOT PROTECTIVELY MARKED

    UK ABWR

    DISCLAIMERS

    Proprietary Information

    This document contains proprietary information of Hitachi-GE Nuclear Energy, Ltd. (Hitachi-GE), its

    suppliers and subcontractors. This document and the information it contains shall not, in whole or in part,

    be used for any purpose other than for the Generic Design Assessment (GDA) of Hitachi-GEs UK ABWR.

    This notice shall be included on any complete or partial reproduction of this document or the information it

    contains.

    Copyright

    No part of this document may be reproduced in any form, without the prior written permission of

    Hitachi-GE Nuclear Energy, Ltd.

    Copyright (C) 2017 Hitachi-GE Nuclear Energy, Ltd. All Rights Reserved.

  • NOT PROTECTIVELY MARKED Form05/01

    UKABWR Generic Environmental Permit Revision G

    Quantification of Discharges and Limits: Table of Contents Ver.0 i

    NOT PROTECTIVELY MARKED

    Table of Contents

    1. Acronyms...................................................................................................... 1 2. References .................................................................................................... 4 3. Introduction ................................................................................................. 6 4. Regulatory Context ..................................................................................... 7 4.1. P&ID Requirements ..................................................................................................... 7 4.2. Alignment with the REPs ............................................................................................. 8 4.3. Regulatory Framework ................................................................................................ 8

    5. Source Terms ................................................................................................ 9 5.1. General Description ...................................................................................................... 9 5.2. Production Mechanisms ............................................................................................... 10 5.2.1. Fission Products and Actinides Products ............................................................... 10 5.2.2. Corrosion Products .................................................................................................. 10 5.2.3. Activation Products .................................................................................................. 10

    5.3. Radionuclides Considered ............................................................................................ 11 5.4. Operating Modes Considered ...................................................................................... 12

    6. Discharge Routes ......................................................................................... 13 7. Discharge Assessments ................................................................................ 15 7.1. Gaseous Discharges ....................................................................................................... 15 7.1.1. Monthly Gaseous Discharges OG System ........................................................... 21 7.1.2. Monthly Gaseous Discharges HVAC System ...................................................... 24 7.1.3. Monthly Gaseous Discharges TGS System ......................................................... 30 7.1.4. Annual Gaseous Discharges - Rolling Twelve Monthly Basis .............................. 35 7.1.5. Annual Gaseous Discharges Total ........................................................................ 38 7.1.6. Gaseous Discharges - Expected Event .................................................................... 39

    7.2. Liquid Discharges ......................................................................................................... 41 7.2.1. Monthly Liquid Discharges ..................................................................................... 41 7.2.2. Annual Liquid Discharges Total .......................................................................... 44 7.2.3. Annual Liquid Discharges - Rolling Twelve Month Basis .................................... 45

    8. Headroom Factor ........................................................................................ 46 8.1. Assumptions .................................................................................................................. 47 8.2. Radionuclides Considered ............................................................................................ 49

  • NOT PROTECTIVELY MARKED Form05/01

    UKABWR Generic Environmental Permit Revision G

    Quantification of Discharges and Limits: Table of Contents Ver.0 ii

    NOT PROTECTIVELY MARKED

    8.3. Derivation of Headroom Factors ................................................................................. 49 8.4. Implications of Headroom Factor Adopted ................................................................ 50 8.5. Proposed Headroom Factor ......................................................................................... 50

    9. Proposed Annual Discharge Limits ........................................................... 52 9.1. Campaign Limits........................................................................................................... 52 9.2. Summary of Input Data ............................................................................................... 52 9.3. Selection of Significant Radionuclides for Permitting ............................................... 58 9.4. UK ABWR Proposed Annual Limits ........................................................................... 60 9.5. Comparison with International Plants ....................................................................... 60 9.5.1. Comparison with Gaseous Discharges ................................................................... 62 9.5.2. Comparison with Liquid Discharges ...................................................................... 67

    10. Conclusion .................................................................................................... 71 Appendix A: UK Dose Limits & Constraints Taken from [Ref-28] ............. 72 Appendix B: Schematic Drawings Showing the Process Source Term

    Calculation Points Used in the Discharges Assessments ......... 73

  • NOT PROTECTIVELY MARKED Form05/01

    UKABWR Generic Environmental Permit Revision G

    Quantification of Discharges and Limits Ver.0 1

    NOT PROTECTIVELY MARKED

    1. Acronyms

    ABWR Advanced Boiling Water Reactor

    ActP Actinide Product

    AGR Advanced Gas cooled Reactor

    ALARA As Low As Reasonably Achievable

    AP Activation Product

    BAT Best Available Technique

    BE Best Estimate

    Bq Becquerel

    BWR Boiling Water Reactor

    CA Cycle Average

    CAD Controlled Area Drain System

    CD Condensate Demineraliser System

    CF Condensate Filter System

    CFDW Condensate and Feedwater System

    CONW Concentrated Waste System

    CP Corrosion Product

    CPS Condensate Purification System

    CST Condensate Storage Tank

    CUW Reactor Water Clean-up System

    D/S Dryer/Separator

    DB Design Basis

    DF Decontamination Factor

    EIC Environmental Impact Control

    EPR European Pressure Reactor

    EPR16 Environmental Permitting (England and Wales) Regulations 2016

    EPRI Electric Power Research Institute

    EU European Union

    EUST End User Source Term

    f-value Fuel leakage rate

    FDW Feedwater System

    FP Fission Product

    FPC Fuel Pool Cooling and Clean-up System

    GB Great Britain

    GDA Generic Design Assessment

  • NOT PROTECTIVELY MARKED Form05/01

    UKABWR Generic Environmental Permit Revision G

    Quantification of Discharges and Limits Ver.0 2

    NOT PROTECTIVELY MARKED

    GEP Generic Environmental Permit

    Gy Gray

    HCW High Chemical Impurity Waste System

    HD Feedwater Heater Drain System

    HEPA High Efficiency Particulate Air System

    HPCP High Pressure Condensate Pump

    HVAC Heating Ventilation and Air Conditioning System

    IAEA International Atomic Energy Agency

    ILW Intermediate Level Waste

    LCO Limiting Control for Operation

    LCW Low Chemical Impurities Waste System

    LD Laundry Drain System

    LLW Low Level Waste

    LPCP Low Pressure Condensate Pump

    NPP Nuclear Power Plant

    NRW Natural Resources Wales

    OG Off-Gas System

    ONR Office for Nuclear Regulation (UK)

    OPEX Operating Experience Feedback

    ORIGEN Oak Ridge Isotope Generator (Code)

    P&ID Process and Information Document fo

Recommended

View more >